Rail-chair



(No Model.)

MOL. THOMSON.

BML GHAIR. No. L112,881. Patented Oct. 8, 1889.

WITNEEEEE- NYENUB- Mgg/ma 1 8 5 The rail' or rails A" rest to impinge upon the upper Isurface of the MCLEOD w. THOMSON, or AL'roONA,

PENNSYLTANIA.

VRAIL-Soiials,

g SPECIFICATIO forming partei Letters Patent o. 412.681, datedl October 8, 1889.

Application filed Marsh 25, 1889.

.To @ZZ whom. it may concern:

Beit known that I, MOLEOD W. THOMsoN, a citizen of the United States, residing at Altoona, in the county of Blair and State ot' Pennsylvania, have invented certain new and useful Improvements in Chairs for Railroad- Rails; and I do hereby declare the following f' to be a full, clear, and `exact description of the invention, reference being,r had to the accompanying drawings, which form part of this specification.

My invention Y railroad-rails; and it lconsists in thenovel construction and combination of parts hereinafter described and specifically claimed, special reference being had to the improved method of fastening the chair to the rails and the chair to the ties.

o In the accompanyingr drawings, Figure 1 is a side View, and Fig. 2 a transyerse section, of my improved twin chairapplied to a railjoint. Fig. 3 is a top view. Fig. 4.- is the stop-spike in perspective. Fig-ashows the cutting of the stop-spike from the bar. Fig. 6 is aview in .perspective A A represent the rails.

B B represent the two halves or sections of. the chair. Each section is formed with a. broad horizontal base portion a., which, when the chair is fitted to the rail,.lie with their inner Vedges in close proximity toeach other, but separated by a space e running the whole length of the chair.

upon the horizontal bases o a., which constitute seats for the rail, and are designed and adapted to receive and support the ent-ire stress of the rail. A web C -is formed at the outer edge of each base and bent inwardly, as indicated at o, so as to overlap the foot of theirail, and thence upwardly parallel or approximately parallel with the web C of the rail, as shown at l). At b the introverted portion of the web C is beveled orshaped on its under surface so as foot of tne (rail. At such point alone the web C contacts with the rail. Between the edges of the rail-foot and the inner wall of the cavity formed at l) by the bending of the web (l a space f is left, while between theinnersurface o theupright extension l) and the sue has relation to chairs for driven into n against the ends of elaim,and desire to tie, wedging against the grain Serial No. 304,626. (No model.)

face of the rail-web a space g is left. The object of the spaces e f g is to provide for drawing up the chair members to compensate for wear. Theparts B B are coupled together and to the rails by horizontal bolts c, passing through the upright extensions of the webs C and the rail-webs.. The extensions D terminate below the head of the rail,

I and therefore do not receive any of the vertical stress orstran, the latter being imposed upon and taken entirely by the base-rests a.. The chair members B B" are secured to the cross-ties by spikes j or screws,which impinge upon the edges and. upper surfaces of the fianges h, formed on the base portion a.. The bolt-holes through the rail and chair are made somewhat larger than the bolts, and those through the vertical portion l) .of the chair are elongated, the purpose of the enlargement being to allow the -rails to expand and contract.

The stop-spikes p arn cut from the bar, as shownin Fig. 5, with two opposite sides tapering and two opposite sides parallel and the ties, impinging against the ends of the chair, and thus prevent the creeping of the rails in direction of the track. The two tapered sides ot` the stop-spike wedge the fibers of the ties. -Ilaving described my invent-ion, what I l. The combination, with the twin chair-sections B of the wedgeshaped headless stop-spike p,drive n into the of the Wood, andl imping'ing upon the end of the chair, substantially as described.

2. The combination, with the cross-ties and the twin chair-sections l B', of the wedgeshaped stop-spike j), driven into the tie, vifedg ing against the grain of the wood, and impinging 'upon the end of the chair, said charf sections having the horizontal bases c a., with projecting flanges inwardly extended webs C, con nected together and engaging the rails A A by means of the transverse screw-bolts c, passing through the vertical Aweb-extensions D, substantially as described.

the cross-ties and 7L, and the upwardly and securel by Letters Patent,

IOO

: 1. The combination, with the cross-ties,

v rails, and twin chair-sections having anged have hereunto set my hand this 12th day ef bases a @,whh. embrace the foot of the rail, March, 1889.

0f wedge-shaped stop-pikes inserted in 'the l ties at the ens of the chair-sections at an ob- MCLEOD W THOMON' 5 lique'angle o the face of the tie, substzm- Witnesses.:

tially as described. IV. R. BINGAMAN, In testimony that l claim the foregoing l G. A. HOUSER. 

